Water fleas of the genus Daphnia have been a model system for hundreds of years and is
among the best studied ecological model organisms to date. Daphnia are planktonic …

Arthropods are the most diverse animal phylum, and their phylogenetic relationships have
been debated for centuries. With the advent of molecular phylogenetics, arthropods were …

Insects are the most speciose group of animals, but the phylogenetic relationships of many
major lineages remain unresolved. We inferred the phylogeny of insects from 1478 protein …

Insects comprise over half of all described animal species. Together with the Protura
(coneheads), Collembola (springtails) and Diplura (two-pronged bristletails), insects form …

Insects, the most diverse group of organisms, are nested within crustaceans, arguably the
most abundant group of marine animals. However, to date, no consensus has been reached …

Horseshoe crabs (**phosura) are traditionally regarded as sister group to the clade of
terrestrial chelicerates (Arachnida). This hypothesis has been challenged by recent …

Chelicerata represents one of the oldest groups of arthropods, with a fossil record extending
to the Cambrian, and is sister group to the remaining extant arthropods, the mandibulates …

The relationships of major arthropod clades have long been contentious, but refinements in
molecular phylogenetics underpin an emerging consensus. Nevertheless, molecular …

The clade Pancrustacea, comprising crustaceans and hexapods, is the most diverse group
of animals on earth, containing over 80% of animal species and half of animal biomass. It …

Fossil age data and molecular sequences are increasingly combined to establish a
timescale for the Tree of Life. Arthropods, as the most species-rich and morphologically …